Mercedes-Benz OM906 engine

{{short description|Diesel engine}}

The Mercedes-Benz OM906 or Mitsubishi 6S20 is a 6.4 liter (6,374cc) Straight-6 (I6) OHV Diesel engine with 3 valves per cylinder.{{Cite web|url=https://www.idem.ir/Pages/Products/Engine/EngineEn.aspx?Type=906|title=Diesel Engine OM 906|website=www.idem.ir|access-date=2019-09-13}}{{Cite web |url=https://www.researchgate.net/figure/Technical-data-of-Mercedes-Benz-engine-OM-906-LA_tbl1_6432710 |title=Table 1 Technical data of Mercedes-Benz engine OM 906 LA |website=ResearchGate |language=en |access-date=2019-10-02}} It is related to the Straight-4 OM904 engine which has two cylinders chopped off, while the bore and stroke remain unchanged.{{Cite web|url=https://barringtondieselclub.co.za/mercedes/904-906.html|title=Mercedes OM904 - OM906 engine specs, bolt torques, manuals|website=barringtondieselclub.co.za|access-date=2019-09-13}}

It launched in 1996 and had a Unit injector system to deliver fuel to every cylinder. It used a twin-scroll Turbocharger that was giving ~1-1.6atm of boost.{{Cite web|url=https://www.fleetnews.co.uk/news/2012/3/14/the-history-of-medium-duty-engines-at-mercedes-benz/42874/|title=The history of medium-duty engines at Mercedes-Benz|website=www.fleetnews.co.uk|language=en|access-date=2019-09-14}}

This engine is also used by Mitsubishi Fuso as 6S20, installed on Mitsubishi Fuso FJ series which is in turn a rebadged version of Mercedes Benz Axor produced by Bharatbenz in India.{{Cite web |title=Driven: the Fuso FJ18-280S - Expert Fuso FJ18-280S Commercial Vehicle Reviews |url=https://www.autotrader.co.za/commercial/reviews/fuso/fj18-280s/driven-the-fuso-fj18-280s/7226 |access-date=2022-07-09 |website=www.autotrader.co.za}}

class="wikitable"

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Engine Details

!Power:

|170-210kW (228-282hp) @ 2,200 rpm

!Height:

|930mm (36.6in)

Torque:

|810-1150Nm (597-848lb.ft) @ 1,200-1,600 rpm

!Weight:

|540kg (1,190lbs)

Aspiration:

|Twin-scroll turbocharger, intercooler

!Injection:

|Direct injection

Compression Ratio:

|18:1

!Boost:

|1-1.6atm

Bore:

|102mm (4in)

!Launch Year:

|1996

Stroke:

|130mm (5.1in)

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|

Displacement:

|6,374cc (389CI)

!

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Redline:

|2,300 rpm

!

|

Length:

|1,228mm (48.3in)

!

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Width:

|640mm (25.2in)

!

|

Torque Curve

See also

References